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On the destabilisation of fibrous growth in monotectic alloys
Ratke, Lorenz and Müller, Anja (2006) On the destabilisation of fibrous growth in monotectic alloys. Scripta Materialia, 54, pp. 1217-1220.
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Abstract
Al–Bi alloys of exact monotectic composition were directionally solidified with solidification velocities from 0.3 lm/s to 5 lm/s and temperature gradients from 2 K/mm to 6.5 K/mm. At large gradients and low solidification velocities the monotectic reaction leads to Bismuth fibres in an Aluminium matrix. The Bi fibres are replaced by a string of pearls of Bi droplets at larger velocities or smaller gradients. The transition between both structures is discussed theoretically and compared with the experimental results.
| Document Type: | Article | ||||||
|---|---|---|---|---|---|---|---|
| Title: | On the destabilisation of fibrous growth in monotectic alloys | ||||||
| Authors: |
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| Date: | 2006 | ||||||
| Journal or Publication Title: | Scripta Materialia | ||||||
| Refereed publication: | Yes | ||||||
| In ISI Web of Science: | Yes | ||||||
| Volume: | 54 | ||||||
| Page Range: | pp. 1217-1220 | ||||||
| Status: | Published | ||||||
| Keywords: | Directional solidification; Morphological transition; Monotectic alloys | ||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||
| HGF - Program: | Space | ||||||
| HGF - Program Themes: | W FR - Forschung unter Weltraumbedingungen | ||||||
| DLR - Research area: | Space | ||||||
| DLR - Program: | W FR - Forschung unter Weltraumbedingungen | ||||||
| DLR - Research theme (Project): | W - Vorhaben Materialwissenschaftliche Forschung (old) | ||||||
| Location: | Köln-Porz | ||||||
| Institutes and Institutions: | Institute of Materials Physics in Space > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS) | ||||||
| Deposited By: | Prof. Lorenz Ratke | ||||||
| Deposited On: | 30 Jan 2006 | ||||||
| Last Modified: | 27 Apr 2009 04:48 |
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